First introduced to North American in 1890, starlings are now one of the most populous birds on the continent and can form huge flocks in open areas. [Mourning Dove] Mourning Doves prosper in many environments – from suburban back yards to agricultural landscapes, from open country to forest edge – and they are regulars at bird feeders. The species is specialised on feeding on seeds of annual grass species, which may … However, the most common wild bird is thought to be the red-billed quelea. Here is a closer look at the most populous animal on Earth. But as soon as you learn to recognize their voice, you’ll discover that they’re indeed abundant. 1. Doxieone Photography / Getty Images. They are sparrow-sized birds with brown bodies and the males have a red bill with variable … Native to southwestern Africa’s dry grasslands, the sociable weaver (Philetairus socius) builds an immense communal nest that can be up to 8 m (26 ft) long and 2 m (6 ft 6 in) high. Of these, the most common or populous wild bird in the world is the Red-billed Quelea (Quelea quelea) from south of the Sahara in Africa. Moving slowly among the dense foliage of treetops, they’re very hard to see. It measures 160 to 183 cm (5 feet 3 inches to 6 feet 0 inches) in length, 7.25–15 kg (16.0–33.1 lb) in weight and 290–345 cm (9 ft 6 in–11 ft 4 in) in wingspan. The Dalmatian pelican (Pelecanus crispus) is among world’s heaviest flying bird species. Resembling a giant haystack that hangs from a tree or telegraph pole, it contains up to 300 individual nests. Plumage is heavily spotted in late fall and early winter, but spots gradually wear off. Technically, the most common bird in the world is the domestic chicken, with around 50 billion birds. Of those, the most numerous is the somber, cooing Mourning Dove, estimated at a cool 350 million birds. There are dozens of varieties of quail, one of the most populous game birds, throughout the world.Quail are commonly hunted but are just as commonly farmed. Farmed quail and quail eggs are available in many markets, butchers, and specialty food stores. Bird-watchers are often surprised to learn that these vireos are among the continent’s most common birds. Donkeys - Over 40 Million In non-breeding plumage, the bill will also be dark. Red-billed Quelea (Quelea quelea), a strong contender for the most common bird in the world. The red-billed quelea is regarded as the most numerous undomesticated bird on earth, with the total post-breeding population sometimes peaking at an estimated 1½ billion individuals. Livestock outnumbers wild mammals and birds ten-to-one in order to satisfy the demands of human consumption: livestock is 4% of the total animal biomass of the world, with wild mammals and birds at 0.38%.